It's just a covert trade war with the US. The US fines VW, then the EU fines Google and Facebook and maybe Apple too. I don't like Google's practices or their ad network but this is just about taxes and clawing back some money after Google used their Ireland subsidiary and banks in the Caymans to avoid paying some taxes in the EU. In the UK they got a slap on the back last year - some 130M pounds in back taxes.
https://www.theguardian.com/technology/2016/jan/22/google-ag...